<!DOCTYPE html>
<html>

<head>
	<meta charset="UTF-8" />
	<title>列表排序</title>
	<script type="text/javascript" src="../js/vue.js"></script>
</head>

<body>
	<!-- 准备好一个容器-->
	<div id="root">
		<h2>人员列表</h2>
		<input type="text" placeholder="请输入名字" v-model="keyWord">
		<button @click="sortType=2">年龄升序</button>
		<button @click="sortType=1">年龄降序</button>
		<button @click="sortType=0">原顺序</button>
		<ul>
			<li v-for="(p,index) of filPerons" :key="p.id">
				{{p.name}}-{{p.age}}-{{p.sex}}
			</li>
		</ul>
	</div>

	<script type="text/javascript">
		Vue.config.productionTip = false

		//用computed实现
		new Vue({
			el: '#root',
			data: {
				sortType: 0,//2：升序  1：降序  0：原顺序
				keyWord: '',
				persons: [
					{ id: '001', name: '马冬梅', age: 29, sex: '女' },
					{ id: '002', name: '周冬雨', age: 20, sex: '女' },
					{ id: '003', name: '周杰伦', age: 31, sex: '男' },
					{ id: '004', name: '温兆伦', age: 22, sex: '男' }
				]
			},
			computed: {
				filPerons() {
					let arr = this.persons.filter((p) => {
						return p.name.indexOf(this.keyWord) !== -1
					})
					if (this.sortType !== 0) {
						//进行排序
						arr.sort((a, b) => {
							return this.sortType === 2 ? a.age - b.age : b.age - a.age
						})
					}
					return arr;
				}
			}
		}) 
	</script>

</html>